shockwave

The flash is followed by the shockwave.

The shockwave weakens as it travels outwards but still, about 175 square kilometres of houses collapse like they're made of cards, trapping tens of thousands of people who didn't have any time to react.

Instead of being absorbed, that sudden change in momentum creates a spike in pressure that travels as a shockwave through the pipe.

The gigantic explosion crashes against the atmosphere with unprecedented violence and causes a shockwave that reaches speeds of more than 1,000 kilometers per hour near the site of impact, similar to the hyper hurricanes on gas giants like Neptune.